Yamaha XT225-C Service Manual page 425

CHECKING OF SWITCHES
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Checking steps:
Turn the switch key to the "ON", "OFF" and
"LOCK" several times.
Set the pocket tester selector to the "Ω × 1".
Connect the tester (+) lead to the "R" lead
terminal in the coupler and the (–) lead to the
"Br" lead terminal.
NOTE:
Use thin probes for checking the continuity.
Otherwise, the probes may contact other ter-
minals inside the coupler.
Check the continuity between "R" and "Br" at
the switch position "ON" 1, "OFF" 2 and
"LOCK" 3.
There must be continuity (the tester indicat-
ing "0") at the "ON" switch position, and there
must be no continuity (the tester indicating
"∞") at "OFF" or "LOCK".
There is something wrong between "R" and
"Br" if there is no continuity at the "ON" posi-
tion or if there is some continuity either at the
"OFF" or "LOCK".
NOTE:
Check the switch for continuity several times.
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5. Next go on to checking of the continuity
between "B/W" and "B" at the respective
switch position, as in the same manner
mentioned above.
6. If there is something wrong with any one
of the combinations, replace the switch
component.
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